/*
 * Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 *
 *
 *
 */

package com.sun.java.swing.plaf.motif;

import sun.awt.AppContext;

import javax.swing.*;

import javax.swing.plaf.*;

import java.awt.*;

/**
 * MotifCheckBox implementation
 * <p>
 * <strong>Warning:</strong>
 * Serialized objects of this class will not be compatible with
 * future Swing releases.  The current serialization support is appropriate
 * for short term storage or RMI between applications running the same
 * version of Swing.  A future release of Swing will provide support for
 * long term persistence.
 *
 * @author Rich Schiavi
 */
public class MotifCheckBoxUI extends MotifRadioButtonUI {

  private static final Object MOTIF_CHECK_BOX_UI_KEY = new Object();

  private final static String propertyPrefix = "CheckBox" + ".";

  private boolean defaults_initialized = false;


  // ********************************
  //         Create PLAF
  // ********************************
  public static ComponentUI createUI(JComponent c) {
    AppContext appContext = AppContext.getAppContext();
    MotifCheckBoxUI motifCheckBoxUI =
        (MotifCheckBoxUI) appContext.get(MOTIF_CHECK_BOX_UI_KEY);
    if (motifCheckBoxUI == null) {
      motifCheckBoxUI = new MotifCheckBoxUI();
      appContext.put(MOTIF_CHECK_BOX_UI_KEY, motifCheckBoxUI);
    }
    return motifCheckBoxUI;
  }

  public String getPropertyPrefix() {
    return propertyPrefix;
  }

  // ********************************
  //          Defaults
  // ********************************
  public void installDefaults(AbstractButton b) {
    super.installDefaults(b);
    if (!defaults_initialized) {
      icon = UIManager.getIcon(getPropertyPrefix() + "icon");
      defaults_initialized = true;
    }
  }

  protected void uninstallDefaults(AbstractButton b) {
    super.uninstallDefaults(b);
    defaults_initialized = false;
  }
}
